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A kind of preparation method of soap wax

A technology of soap wax and wax layer, which is applied in the field of preparation of soap wax to achieve the effects of low operating cost, simple production process, and no solvent pollution to the environment

Active Publication Date: 2017-11-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of the invention has the advantages of low device investment, simple production process, low operating cost, and no solvent pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling and crystallization, (4) heating and sweating, (5) crude product collection, (6) product refining and other processes.

[0036] (1) Preparation

[0037] Connect the sealing system on the upper part of the sweating dish with the buffer tank and the compressor.

[0038] The lower part of the sweating dish plate is cushioned with water.

[0039] Connect the jacket of the sweating dish and the movable coil to the circulation system, using water as the medium; start the heating function of the circulation system to raise the temperature of the circulation water to 45°C.

[0040] (2) Loading

[0041] Use Changsixian wax paste (melting point 41.5°C, oil content 13.2%) as raw material, heat and melt it and add it to a sweating dish; immerse the coil in the raw material wax layer and fix it.

[0042] (3) cooling crystallization

[0043] Start the refrigeration function of the circulation system, and co...

Embodiment 2

[0055] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling and crystallization, (4) heating and sweating, (5) crude product collection and metal particle recovery, (6) product refining and other processes.

[0056] (1) Preparation

[0057] Connect the sealing system on the upper part of the sweating dish with the buffer tank and the compressor.

[0058] Put water on the lower part of the sweating dish plate; spread double layers of medium-speed filter paper on the sweating dish plate.

[0059] Connect the jacket of the sweating dish and the movable coil to the circulation system, using water as the medium; start the heating function of the circulation system to raise the temperature of the circulation water to 45°C.

[0060] Sieve out 30-mesh to 50-mesh copper particles and iron particles, and mix them evenly at a weight-to-number ratio of 1:1.

[0061] (2) Loading

[0062] Use Changsixian wax paste (the properties are the same as in Example 1) as raw ...

Embodiment 3

[0078] This embodiment includes: (1) preparatory work, (2) charging, (3) cooling and crystallization, (4) heating and sweating, (5) crude product collection and metal particle recovery, (6) product refining and other processes.

[0079] (1) Preparation

[0080] A buffer tank is installed on the lower part of the sweat dish and a vacuum pump is connected.

[0081] Put water on the lower part of the sweating dish plate; spread double layers of medium-speed filter paper on the sweating dish plate.

[0082] Sieve out 20-mesh to 40-mesh lead particles and zinc particles, and mix them evenly at a weight-to-number ratio of 1:1.

[0083] (2) Loading

[0084] Take Changsixian wax paste (the same properties as in Example 1) as raw material, heat and melt it, and add it to a sweating dish covered with filter paper.

[0085] (3) cooling crystallization

[0086] The wax layer was controlled to drop to 30.0°C at a cooling rate of 3.0°C / h with an air bath to crystallize the wax layer to ...

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Abstract

The invention discloses a preparation method of soap wax. In this method, the surface of the wax layer is evenly covered with solid particles before the heating and sweating process, and the airflow is forced to pass through the wax layer during the heating and sweating process to carry out the liquid oil, which speeds up the separation speed of wax and oil, and strengthens the wax and wax. Oil separation effect. Based on the common deoiling method by sweating, the invention adds a process of forced wax and oil separation, thereby increasing the yield of the target product and shortening the production cycle. The method of the invention has the advantages of low production equipment investment, simple production process, low operating cost, no solvent pollution and the like.

Description

technical field [0001] The invention belongs to the technical field of petroleum wax production, in particular to a preparation method of soap wax. Background technique [0002] Petroleum wax is a general term for various wax products obtained from waxy distillates after refining crude oil, including liquid paraffin, soap wax, paraffin wax and microcrystalline wax. Soap wax is produced by the steps of dewaxing, deoiling, refining and molding of lubricating oil fractions in crude oil. It generally contains n-paraffins, a small amount of isoparaffins and naphthenes and other components, and its melting point is 40 ° C to 52 ° C. [0003] Dewaxing is a process in which lubricating oil fractions are used as raw materials to prepare wax paste with an oil content of about 10-30%. The dewaxing process mainly includes press dewaxing and solvent dewaxing. Deoiling is the process of preparing crude wax with an oil content of less than 2% from wax paste. The deoiling process mainly in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G73/42
Inventor 孙剑锋王会民王士新王立言李莉
Owner CHINA PETROLEUM & CHEM CORP